[1]HAO Wanglin,LIANG Yinli,MU Lan,et al.Effects of Different Surface Mulches on Soil Respiration and Hydrothermal Environment in Urban Vineyards[J].Research of Soil and Water Conservation,2021,28(06):65-74.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
28
Number of periods:
2021 06
Page number:
65-74
Column:
Public date:
2021-10-10
- Title:
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Effects of Different Surface Mulches on Soil Respiration and Hydrothermal Environment in Urban Vineyards
- Author(s):
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HAO Wanglin1,2,3,LIANG Yinli1,2,4,MU Lan5,YIN Ning4,XU Mingxiang1,2,4
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(1.Institute of Soil and Water Conservation,CAS & MWR,Yangling,Shaanxi712100,China; 2.University of Chinese Academy of Sciences,Beijing100190,China; 3.Department of Life Sciences,Lüliang University,Lüliang,Shanxi033000,China; 4.Institute of Soil and Water Conservation,Northwest A&F University,Yangling,Shaanxi712100,China; 5.Northwest Institute of Historical Environment and Socio-Economic Development,Shaanxi Normal University,Xi'an710061,China)
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- Keywords:
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urban agriculture; soil respiration; moisture; temperature; mulch pattern
- CLC:
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S663.1; S152
- DOI:
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- Abstract:
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To explore the effects of different mulches on the soil respiration and hydrothermal environment of orchards in urban vineyards,five filed treatments including CK(open field),planting Oxalis corniculata L. and Trifolium repens L.,covering with black film and white film were designed,soil respiration and hydrothermal environment during growth-production period were monitored,and the response relationship between them were analyzed. The results showed that:(1)compared with bare ground surface(CK),the soil respiration rate of vineyards under four different mulches significantly increased(p<0.05),and the respiration rate of vineyards was as follows: Trifolium repens L.>black film>white film>Oxalis corniculata L.; the peak soil respiration rate in each treatment occurred in August;(2)the soil moisture of the vineyards under 4 different mulches and CK showed obvious vertical cross-section characteristics at different periods; the soil under 4 different mulches had significant water conservation capacity,film mulch(black film,white film)showed stronger water retention capacity than grass mulch(Oxalis corniculata L.,Trifolium repens L.); the average temperature of mulching treatment(black film,white film)was higher than that of CK(open field),while the average temperature of grass planting treatment(Oxalis corniculata L.,Trifolium repens L.)was lower than that of CK,effect of rasing soil temperature in mulching treatment was stronger than grass planting treatment; black film treatment had a relatively strong effect of rasing soil temperature,and it was better than other treatments in maintaining soil temperature stability;(3)soil respiration and soil moisture showed a significant quadratic function relationship in vineyards under film mulch(p<0.05),while soil respiration and soil moisture showed an exponential function relationship in vineyards under grass mulch(p<0.05); the soil temperature(5 cm)of all treatment had an exponential function relationship with the soil respiration,and the temperature sensitivity coefficient(Q10)of each treatment was showed as follows: black film>CK(open field)>white film>Trifolium repens L.>Oxalis corniculata L.. From the perspective of carbon reduction and water conservation,Oxalis corniculata L. mulch and black film mulch are more suitable mulch; however,if further consideration is given to reducing environmental pollution and maintaining sustainable development of suburban agriculture,Oxalis corniculata L. mulch is much more suitable for new urban agricultural production rather than other three types of mulch patterns.